EP 0880618 B1 20011212 - PRODUCTION OF FILLED PAPER AND COMPOSITIONS FOR USE IN THIS
Title (en)
PRODUCTION OF FILLED PAPER AND COMPOSITIONS FOR USE IN THIS
Title (de)
HERSTELLUNG VON GEFÜLLTEM PAPIER, ZUSAMMENSETZUNGEN UND DEREN VERWENDUNG
Title (fr)
PRODUCTION DE PAPIER CONTENANT UNE CHARGE ET COMPOSITION DESTINEE A CETTE FABRICATION
Publication
Application
Priority
- GB 9700393 W 19970212
- US 60033696 A 19960213
Abstract (en)
[origin: US5827398A] Filled paper is made by adding a cationising amount of cationic polymer to a slurry of precipitated calcium carbonate, mixing this slurry into a cellulosic suspension and forming a thin stock, adding anionic particulate material to the suspension before or after the slurry, mixing a polymeric retention aid into the thin stock which includes the precipitated calcium carbonate and the anionic particulate material, draining the thin stock on a screen to form a sheet and drying the sheet. A suitable slurry for this purpose is a slurry of 5 to 70% by weight precipitated calcium carbonate and cationic polymer selected from 0.1 to 1% cationic starch and 0.01 to 0.3% of a high charge density, relatively low molecular weight, cationic polymer.
IPC 1-7
IPC 8 full level
D21H 17/64 (2006.01); D21H 23/76 (2006.01); D21H 17/29 (2006.01); D21H 17/37 (2006.01); D21H 17/45 (2006.01); D21H 17/53 (2006.01); D21H 17/55 (2006.01); D21H 17/56 (2006.01); D21H 17/67 (2006.01); D21H 17/68 (2006.01); D21H 21/10 (2006.01)
CPC (source: EP KR US)
D21H 17/67 (2013.01 - KR); D21H 23/76 (2013.01 - KR); D21H 23/765 (2013.01 - EP US); D21H 17/29 (2013.01 - EP US); D21H 17/375 (2013.01 - EP US); D21H 17/455 (2013.01 - EP US); D21H 17/53 (2013.01 - EP US); D21H 17/55 (2013.01 - EP US); D21H 17/56 (2013.01 - EP US); D21H 17/675 (2013.01 - EP US); D21H 17/68 (2013.01 - EP US); D21H 21/10 (2013.01 - EP US)
Designated contracting state (EPC)
AT BE CH DE DK ES FI FR GB GR IE IT LI LU NL PT SE
DOCDB simple family (publication)
WO 9730220 A1 19970821; AT E210764 T1 20011215; AU 1799997 A 19970902; AU 716839 B2 20000309; BR 9706815 A 19990914; CA 2180373 A1 19970814; CA 2180373 C 20011204; CA 2354106 A1 19970814; CA 2354106 C 20030114; CN 1083509 C 20020424; CN 1208446 A 19990217; DE 69709062 D1 20020124; DE 69709062 T2 20020711; DK 0880618 T3 20020402; EP 0880618 A1 19981202; EP 0880618 B1 20011212; ES 2169847 T3 20020716; JP 2000504790 A 20000418; JP 4408959 B2 20100203; KR 100460683 B1 20050406; KR 19990072068 A 19990927; NO 324371 B1 20071001; NO 982267 D0 19980518; NO 982267 L 19980812; NZ 330458 A 20000228; PT 880618 E 20020531; US 5827398 A 19981027; ZA 971221 B 19980216
DOCDB simple family (application)
GB 9700393 W 19970212; AT 97903445 T 19970212; AU 1799997 A 19970212; BR 9706815 A 19970212; CA 2180373 A 19960702; CA 2354106 A 19960702; CN 97191699 A 19970212; DE 69709062 T 19970212; DK 97903445 T 19970212; EP 97903445 A 19970212; ES 97903445 T 19970212; JP 52878597 A 19970212; KR 19980704374 A 19980611; NO 982267 A 19980518; NZ 33045897 A 19970212; PT 97903445 T 19970212; US 60033696 A 19960213; ZA 971221 A 19970213